Fix #277: type readTreeOids mock contract

[flyingrobots]

Summary

• type shared mock readTreeOids helpers as Promise<Record<string, string>>
• default both mock persistence factories to async object-map implementations
• add focused tests that compile against and assert the object-map contract

Closes #277

Validation

• npm exec vitest run test/unit/helpers/mockPorts.test.ts test/unit/helpers/WarpGraphMockPersistence.test.ts
• npm run typecheck:test
• pre-push IRONCLAD gates 0-7 passed with WARP_QUICK_PUSH=1

[coderabbitai]

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ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 2bab9892-8447-47ff-a019-2582e886d5e8

📥 Commits

Reviewing files that changed from the base of the PR and between a21fb8b and d8bc17b.

📒 Files selected for processing (4)

• test/helpers/WarpGraphMockPersistence.ts
• test/helpers/mockPorts.ts
• test/unit/helpers/WarpGraphMockPersistence.test.ts
• test/unit/helpers/mockPorts.test.ts

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch fix-277-read-tree-oids-mock-contract

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[github-actions]

Release Preflight

• package version: 18.0.0
• prerelease: false
• npm dist-tag on release: latest
• npm pack dry-run: passed
• jsr publish dry-run: passed

If you tag this commit as v18.0.0, release workflow will publish.

[flyingrobots]

Code Lawyer Findings

@codex please confirm this review posture.

Severity	File	Lines	Type	Issue	Recommended mitigation prompt
P5 Nit	test/unit/helpers/WarpGraphMockPersistence.test.ts, test/unit/helpers/mockPorts.test.ts	test title	Contract wording	The new test titles describe readTreeOids as a “tree path” contract, but the helper type and port argument are treeOid. This is a tiny wording drift in the proof text.	Rename the affected test titles from “tree path to object-map contract” to “tree object id to object-map contract”, then rerun the focused helper tests and typecheck:test.

[flyingrobots]

Code Lawyer Activity Summary

@codex please confirm this closure.

Source	Severity	File	Lines	Issue	Commit	Outcome
Self	P5 Nit	test/unit/helpers/WarpGraphMockPersistence.test.ts, test/unit/helpers/mockPorts.test.ts	test title	Proof text called the readTreeOids(treeOid) contract a “tree path” contract.	d8bc17bd	Renamed both test titles to “tree object id to object-map contract”.

Validation:

• npm exec vitest run test/unit/helpers/WarpGraphMockPersistence.test.ts test/unit/helpers/mockPorts.test.ts
• npm run typecheck:test
• git diff --check
• WARP_QUICK_PUSH=1 git push static pre-push gates 0-7 passed; unit gate intentionally skipped by quick mode.

[github-actions]

Release Preflight

• package version: 18.0.0
• prerelease: false
• npm dist-tag on release: latest
• npm pack dry-run: passed
• jsr publish dry-run: passed

If you tag this commit as v18.0.0, release workflow will publish.